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Footprints thus provide US not merely with rare impressions of the soft tissue of early hominids，but also with evidence of upright walking that in many ways is clearer than can be obtained from the analysis of bones.

因此脚印不仅仅为我们提供早期人类软组织的稀有印记，而且为我们提供了直立行走的证据，这些证据在许多方面比骨头分析所提供的证据更清楚。

A detailed study has been made of the prints using photogrammetry，a technique for obtaining measurements through photographs，which created a drawing showing all the curves and contours of the prints.

已经使用照相测量法(一种通过照相获得测量数据的技术)对这些脚印进行了一项详细的研究，这种方法产生了一张显示脚印所有曲线和轮廓的照片。

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